[CRYPTO] geode: do not copy the IV too often
There is no reason to keep the IV in the private structre. Instead keep
just a pointer to make the patch smaller :)
This also remove a few memcpy()s
Signed-off-by: Sebastian Siewior <sebastian@breakpoint.cc>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
diff --git a/drivers/crypto/geode-aes.c b/drivers/crypto/geode-aes.c
index 0ca92d4..68be7d08 100644
--- a/drivers/crypto/geode-aes.c
+++ b/drivers/crypto/geode-aes.c
@@ -315,7 +315,7 @@
blkcipher_walk_init(&walk, dst, src, nbytes);
err = blkcipher_walk_virt(desc, &walk);
- memcpy(op->iv, walk.iv, AES_IV_LENGTH);
+ op->iv = walk.iv;
while((nbytes = walk.nbytes)) {
op->src = walk.src.virt.addr,
@@ -330,7 +330,6 @@
err = blkcipher_walk_done(desc, &walk, nbytes);
}
- memcpy(walk.iv, op->iv, AES_IV_LENGTH);
return err;
}
@@ -348,7 +347,7 @@
blkcipher_walk_init(&walk, dst, src, nbytes);
err = blkcipher_walk_virt(desc, &walk);
- memcpy(op->iv, walk.iv, AES_IV_LENGTH);
+ op->iv = walk.iv;
while((nbytes = walk.nbytes)) {
op->src = walk.src.virt.addr,
@@ -362,7 +361,6 @@
err = blkcipher_walk_done(desc, &walk, nbytes);
}
- memcpy(walk.iv, op->iv, AES_IV_LENGTH);
return err;
}
diff --git a/drivers/crypto/geode-aes.h b/drivers/crypto/geode-aes.h
index 14cc763..f1855b5 100644
--- a/drivers/crypto/geode-aes.h
+++ b/drivers/crypto/geode-aes.h
@@ -65,7 +65,7 @@
int len;
u8 key[AES_KEY_LENGTH];
- u8 iv[AES_IV_LENGTH];
+ u8 *iv;
union {
struct crypto_blkcipher *blk;